/Engine/Source/Runtime/Sockets/Public/SocketSubsystem.h
Returns the multihome address if the flag is present and valid. For ease of use, this function will check validity of the address for the caller.
If the multihome address was set and valid
virtual bool GetMultihomeAddress ( [TSharedRef](API\Runtime\Core\Templates\TSharedRef)< [FInternetAddr](API\Runtime\Sockets\FInternetAddr) > & Addr )